15. The human embryo and all other vertebrate embryos have gill slits. This best supports the idea that
a. Life descended from water
b. Embryos can breathe under water
c. Vertebrates are evolutionarily related
d. Humans become fish before they become human
Answer:
b. is the answer
Explanation:
Why do most washing powders have proteases as their enzyme?
Answer:
Because stains are made of different types of molecules, a range of enzymes are needed to break them down. ... Proteases break down proteins, so are good for blood, egg, gravy, and other protein stains. Amylases break down starches, and lipases break down fats and grease.
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Answer:
Because stains are made of different types of molecules, a range of enzymes are needed to break them down. Proteases break down proteins, so are good for blood, egg, gravy, and other protein stains. Amylases break down starches, and lipases break down fats and grease. Washing powders usually only contain one type of enzyme, though some have two or all three.
Explanation:
Which best describes a difference between single-celled organisms and multicellular organisms?
O A Single-celled organisms are simple, while multicellular organisms are complex,
OB. Single-celled organisms have many functions, while multicellular organisms have one function.
O c. Single-celled organisms can live without water, while mufficellular organisms cannot live without water.
D. Single-celled organisms can only be found in one specific environment, while multicellular organisms can be found anywhere on
Earth
Answer:
O A Single-celled organisms are simple, while multicellular organisms are complex,
19. During which phase of the cell cycle does the chromosome number increase to 4n?
A)Gap 2
B)synthesis
C)Interphase
D)mitosis
Answer:
I believe it's gap 2
Explanation:
i hope this helps if not im sorry
If an organism has a hapoloid chromosome of 8 which of the following is the organism diploid chromosomes and why
Answer:
if I remember right, a diploid is twice the amount of a haploid because diplood are pair chromosomes. So if there is 8 haploid there will be 16 diploid.
Explanation:
To find the diploid put the n of 2n.
If the dry bulb temperature is 46,and the dew point is 11 degrees celsius,what would be the difference between the wet-bulb and dry-bulb temperatures?
Answer:
Dew is the condensed water that a person often sees on flowers and grass early in the morning. Dew point varies depending on the amount of water vapor present in the air, with more humid air resulting in a higher dew point than dry air. Furthermore, the higher the relative humidity, the closer the dew point to the current air temperature.
Explanation:
are are the two processors that obtain energy
Examine the weather map.
A weather map of the United notes. The following are shown on the map: major cities with high and low temperatures; high and low pressure systems; types of precipitation, fronts. The arrow is pointing to an H in a circle.
What does the symbol indicated by the arrows most likely represent?
a hurricane
low pressure
high pressure
high temperatures
Answer:
The answer would be High Pressure, H on a weather map means High Pressure, a red L on a weather map means low pressure.
The symbol represented in the weather map by H, is high pressure.
Symbols of weather map
The symbols on the weather map is used to indicate temperatures and pressures of different zones.
Symbols and their meanings on the weather mapSymbol L: This symbol is used to represent low pressure zoneSymbol H: This symbol is used to represent high pressure zone.Thus, the symbol represented in the weather map by H, is high pressure.
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________ exercise strengthens skeletal muscle, and ________ exercise strengthens skeletal and cardiac muscle.
a. resistance, aerobic
b.aerobic, aerobic
c. aerobic, resistance
d. resistance, resistance
Answer:
D ANSWER OK
Explanation:
BECAUSE IT IS THE RIGHT ANSWER
A “year” on Earth is 365.26 days long. A “year” on Saturn lasts over 29 times longer than Earth. Which of the following best explains this difference between the two planets?
Saturn is farther from the Sun than Earth.
Saturn rotates on its axis faster than Earth.
Saturn has greater gravitational force than Earth.
Saturn revolves around the Sun faster than Earth.
Answer: Saturn is farther from the Sun than Earth.
Explanation:
Of the 10 virus types on the website, which is the smallest?
A. T7
B. Coronavirus
C. Zika
D. Rabies
Answer:
b
Explanation:
PLEASE HELP ASAP
Which of the following is an example of a nonsense mutation?
A substitution of a serine amino acid for a glycine amino acid
A substitution of glycine amino acid for a stop codon
An insertion or deletion of nucleotides that is not a multiple of three
A codon mutated from CCG to CCA, both coding for glycine
Answer:
An insertion or deletion of nucleotides that is not a multiple of three
Answer:A substitution of glycine amino acid for a stop codon is an example of a nonsense mutation.
Explanation:
A nonsense mutation is a type of point mutation that results in the formation of a premature stop codon in the mRNA sequence.
Which of the following does a prokaryotic cell lack?
A. nucleus
B. cell wall
C. ribosomes
D. DNA
Many plants can reproduce both sexually and asexually. For example, rose bushes reproduce asexually when cuttings planted in the ground grow roots and become a new rose bush. They can also reproduce sexually when their flowers are pollinated. What is the primary advantage of sexual reproduction in roses?
A. Roses reproduce more quickly when reproducing sexually.
B. Roses can produce more offspring in sexual reproduction.
C. Roses produced through sexual reproduction have more genetic variation.
D. Roses can reproduce sexually without the use of gametes.
Which of the following BEST describes the many rivers that flow through the state of
Florida?
Florida's rivers are very slow due to the flatness of the terrain
Florida's rivers are very deep as a result of the force of the water rushing down mountains.
Florida's rivers always begin at the coastline
Florida's rivers are very swifts and cause much erosion
Answer:
Florida’s rivers are very slow due to the flatness of the terrain
Explanation:
What qualities have human promoted through selective breeding (artificial selection)?
Explanation:
Humans have selectively bred plants and animals for thousands of years including: crop plants with better yields. ornamental plants with particular flower shapes and colours. farm animals that produce more, better quality meat or wool.
3. In the image below, which letter represents a base pair?
otA
B
30
D
What are the three main parts of the nervous system
Answer:
brain, spinal cord, and nerves
Explanation:
you could be meaning something else but this is what i was taught in anatomy
Answer:
They are the: Central nervous system,
Peripheral nervous system,
Automatic nervous system.
Into which of the six kingdoms should the organism be placed?
Construct a response to state your claim, use evidence, and support
with reasoning. Include the list of common characteristics of the
kingdom and why it does not belong in the other kingdoms in your
justification.*
Answer:
Protista
Explanation:
The florida panther prefers to prey on wild hogs and deer. As agriculture and housing spread throughout the state, florida panthers began to prey on livestock. What most likely explains why the florida panther began to eat domesticated animals?
Answer:
Wild hogs and deer's food sources were probably disrupted as agriculture and housing spread throughout the state, so they moved to different areas. Since the panther is a carnivore, and livestock was being moved into its habitat, it wouldn't have needed to move since the livestock could replace the hogs and deer.
Explanation:
Which of the following statements is true?
OA. Chromosomes make up proteins.
OB. Genes make up cells.
OC. Chromosomes make up genes.
OD.
Genes make up chromosomes.
Two identical alleles for the same gene present in a cell
Answer:
The correct answer is D.
1. Who is widely considered to be the
father of genetics?
A. Gregory Mendel
B. G. H. Hardy
C. William Bateson
D. Reginald Punnett
Answer:
a. Gregory Mendel
Explanation:
Gregory Mendel is the father of genetics
Gregory Mendel is widely considered to be the father of genetics
Option A is correct
How do we explain?Gregor Mendel was an Austrian monk and botanist who is considered to be the father of genetics. He conducted experiments on pea plants and was able to formulate the laws of inheritance, which are the basic principles of genetics.
Mendel's work was not widely recognized until the early 20th century, but it has since had a profound impact on our understanding of genetics. His work laid the foundation for the study of genetics and has helped to advance our understanding of how traits are passed down from parents to offspring.
Therefore, Option A is correct
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please help me- how does rock layer h compare to rock layer m?
Answer: Rock layer H is much newer than rock layer M. If all layers were perfectly stacked, the lower layer would be older. However, since we can see Layer H was probably formed by a crack that was filled with magma, Layer H will be newer.
Hope this helps :)
1.Where is there more atmospheric pressure, in New Orleans, at sea level, or Mt. Everest? Why? a. New Orleans, because pressure increases as you get deeper in the atmosphere and closer to the center of Earth b. c. d. Mt. Everest, because pressure increases as altitude increases New Orleans, because there is less air near Earth's surface Mt. Everest, because pressure decreases as altitude increases
Answer:
a. New Orleans, because pressure increases as you get deeper in the atmosphere and closer to the center of Earth
Explanation:
Low altitudes: There is more atmospheric pressure in comparison with higher altitudes. When closer to the Earth core, the more pressure and temperature there is. High Altitudes: As high increases, atmospheric pressure, and temperature, decreases, leading to a lower oxygen partial pressure in the environment.At sea level, the atmosphere pressures the earth's surface with approximately 1-kilogram per square centimeter strength. This means that at sea level, there is one ton of air making pressure over us. But this air pressure decreases with altitude.
At high level there is less air making pressure from above, and there is less gravity acting. Molecules are more separate from each other, and the density decreases.
Label the following statements as characteristics of the central or peripheral nervous systems:
A bee stings your finger, and the sensory receptors in the ___ produce a pain signal.
The message of this pain travels up your arm. The ___ is predominantly at work.
Your brain receives and interprets the pain message. The ___ is predominantly at work.
You think about pulling the bee stinger out of your finger. The ___ is predominantly at work.
You move your other hand, lifting it to your finger to pull the stinger out. The ___ system is predominantly at work.
Explanation:
peripheral, peripheral nervous system, central nervous system, central nervous system, peripheral
1. Describe at least two experiments and discuss how they helped determine that DNA and not protein was the hereditary material.
2. What is the importance of the fact that the sugar-phosphate backbone of DNA is held together by covalent bonds, and that the two strands are held together by hydrogen bonds.
3. Explain how the 3’ and the 5’ end of the DNA molecule affects DNA replication.
4. Telomerase activity can both shorten and lengthen cancerous cell lifespan. Describe how both are possible.
PLEASE HELP ME, ITS OKAY IF YOU ONLY ANSWER ONE :)
Compare and contrast chemical weather by water
and by oxygen. How are they similar and how are
they different?
Answer:
Physical and chemical weathering often happen at the same time, but the ... Water that freezes in cracks and forms ice, salt from evaporated seawater, ... For example, the rocks on a riverbed smooth each other because they collide in the current. ... Oxidation is the reaction of oxygen with chemicals in a rock.
Explanation:
Why does a mask have to cover both your nose and mouth to be effective explain using the Respiratory tract
Your nose and your mouth are both a portal of entry into your body. If you cover one and not the other it defeats the purpose because Bacteria can still enter the system. They are both part of your respiratory system.
A pea plant with purple flowers is crossed with a pea plant that has white flowers. All the offspring are purple, so we can conclude that
Answer:
That the purple trait is dominant and the purple pea plant has a gene type of PP and the white flower has a gene type of pp
